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Steps to upgrade firmware in Cisco IOS devices Also, make sure to download the Cisco IOS software image onto the TFTP Server in Network Configuration Manager. If you don't have NCM installed, please click here to download and install the application. To upgrade firmware using Network Configuration Manager, you can create the corresponding Configlet commands and upgrade firmware in multiple devices. Once that is done, the downloaded file should be transferred to a flash drive of the device, usually via TFTP or FTP. You can do this by logging in here and selecting your device type and version. This article is about firmware upgrade in Cisco IOS devices. Before upgrading IOS, you should make sure to obtain the latest IOS version.
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